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fix: use HMAC for caller cache namespaces

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This commit is contained in:
Maximilian Rink 2026-10-10 16:35:38 +02:00
parent b59d30aaba
commit 0b13b2eaca
1 changed files with 5 additions and 1 deletions
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6
litellm/caching/caching.py
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@ -9,6 +9,7 @@
import ast
import hashlib
import hmac
import json
import logging
import time
@ -643,7 +644,10 @@ class Cache:
"user_role": getattr(auth_object, "user_role", None),
}
identity = json.dumps(identity_fields, sort_keys=True, default=str, separators=(",", ":"))
authenticated_namespace = "caller:" + hashlib.sha256(identity.encode("utf-8")).hexdigest()[:32]
caller_digest = hmac.new(
b"litellm-cache-namespace-v1", identity.encode("utf-8"), hashlib.sha256
).hexdigest()
authenticated_namespace = "caller:" + caller_digest[:32]
break
requested_namespace_value: Final = dynamic_cache_control.get("namespace")
requested_namespace: Final[str | None] = (